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分析104例急性心肌梗塞患者胸痛发作24h内心电图ST段对应性变化及与心功能的关系。发现:44/66例单一部位、8/29例复合部位梗塞和1/9例梗塞原位扩展者心电图有对应ST段改变;有或无对应改变者之间心功能无显著差异,而单一和复合梗塞者之间心功能变化有显著差异;33/51例无对应ST段改变者可找出使ST向量无变化的原因;26例急性下壁梗塞其前壁ST段压低可延伸至V(5～6)导联且发病72h后仍不回复至基线;单纯下壁梗塞者V_(1～4)ST段下降总和与下壁加正后壁者V_(1～4)ST段下降总和之间有显著差异。作者认为:急性心肌梗塞时ST段对应改变系心电向量力变化所致。唯一影响心功能因素是梗塞面积。动态监测ST段对应改变的过程对估计病情和判断预后均极有意义。
Analysis of 104 cases of acute myocardial infarction within 24 hours of onset of chest pain ECG changes in ST segment correspondence and cardiac function. Found: 44/66 cases of a single site, 8/29 cases of composite infarction and 1/9 cases of infarction in situ echocardiography with ST-segment changes corresponding; with or without corresponding changes in cardiac function was no significant difference between single and There were significant differences in cardiac function between patients with complicated infarction and those without ST-segment changes in 33 of 51 patients. The 26 patients with acute inferior wall infarction had ST-segment depression of the anterior wall extending to V ( 5 ~ 6) lead and did not return to baseline after 72h. The sum of the decrease of ST segment of V_ (1-4) and the decrease of V_ (1-4) ST segment of the posterior wall of posterior inferior wall plus simple wall infarction There are significant differences between. The authors believe that: ST-segment changes in acute myocardial infarction caused by changes in ECG vector force. The only factor that affects cardiac function is the infarct size. Dynamic monitoring of ST segment changes in the process of estimating the disease and prognosis are of great significance.